Extruder insert



FIG. 1 is a perspective view of an extruder insert showing my new design;

FIG. 2 is a top view of the extruder insert showing my new design;

FIG. 3 is an front end view of the extruder insert showing my new design;

FIG. 4 is a side view of the extruder insert showing my new design;

FIG. 5 is a bottom view of the extruder insert showing my new design; and,

FIG. 6 is a back end view of the extruder insert showing my new design.

The broken line showing of a surface and a circle grouping and portions of the extruder insert are included for the purpose of illustrating non-claimed subject matter and form no part of the claimed design. 

The ornamental design for an extruder insert, as shown and described. 